What is the single best defining description of the classical pathway of complement activation?

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#Question id: 1286

#Section 3: Genetics, Cellular and Molecular Biology

Syndecans are cell-surface proteoglycans that:

a. bind to collagens.

b. bind to multi-adhesive matrix proteins.

c. anchor cells to the extracellular matrix.

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#Question id: 10507

#Section 6: Plant, Animal and Microbial Biotechnology

Rhizobacteria function as

 a) Nitrogen fixation

 b) depositing pathogens directly into the vascular system,

 c) producing antibiotics and antifungal agents for inhibiting soil pathogens

 d) herbivore sensors by sending electrical or chemical signals to surrounding cells

 Which one of the following combination is correct?

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#Question id: 14362

#Section 5: Bioprocess Engineering and Process Biotechnology

An experiment requires the use of 5 x 107 units of enzyme. The price for the enzyme is quoted for katal amounts. Allowing for a 20% excess for wastage, pipetting, and so forth, what approximate round number of katals of enzyme would you purchase? 

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#Question id: 1859

#Section 2: General Biology

Defects in the neutrophil NADPH oxidase system result in:

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#Question id: 3864

#Section 3: Genetics, Cellular and Molecular Biology

RNA polymerase: